General Information Edit

One of the basic models of evolution. Genetic drift is described as random fluctuations in the number of gene variants within a population (1)

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Each generation, certain genes are "left behind" due to the infrequency of their certain population. A population's allele frequency is categorized as the copies of a certain gene or gene variants (2) . If these copy numbers are low, the greater the risk that specific gene or gene variant experiences genetic drift. Upon significant genetic drift, it is possible that a gene may be lost over time due to random sampling. Genetic drift is considered to be common post population "bottle-necking" when environmental or evolutionary events significantly decrease the size of a given population (3) . Genetic drift is also considered to play a role in the evolution of new species; periodically, genetic drift can cause a new population to be vastly genetically distinct from its original population.